Store Extra Energy In Liquid Air

The UK's Institution of Mechanical Engineers has announced that liquid air can be used to store excess energy generated from renewable sources. For example, wind farms generate power at night, but since demand is low at that time, the energy may be wasted.

When demand increases the next day, the liquid air can be warmed to drive a turbine, thereby giving the energy back. Engineers say the process can achieve an efficiency of up to 70%.

The process follows a number of stages:
  1. "Wrong-time electricity" is used to take in air, remove the CO2 and water vapour (these would freeze otherwise)
  2. the remaining air, mostly nitrogen, is chilled to -190C (-310F) and turns to liquid (changing the state of the air from gas to liquid is what stores the energy)
  3. the liquid air is held in a giant vacuum flask until it is needed
  4. when demand for power rises, the liquid is warmed to ambient temperature. As it vaporizes, it drives a turbine to produce electricity - no combustion is involved.
Highview believes that, produced at scale, their kits could be up to 70% efficient, and IMechE agrees this figure is realistic.

This work derives from the work of Britainís Peter Dearman, who invented a liquid air engine to power vehicles as seen in the following video.

Science fiction fans of yesteryear would not find this idea hard to believe. The idea of storing energy in liquid air and then using it to power engines was used in Buck Rogers in the 25th Century.


(Buck Rogers in the 25th Century)

Via BBC. Thanks to Winchell Chung of Project Rho for the tip and the reference on this story.

Scroll down for more stories in the same category. (Story submitted 10/2/2012)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Seabreacher, H.G. Winter's 1939 Torpoon
'Ken lay full-length in the padded body compartment, his feet resting on the controlling bars of the directional planes, hands on the torpoon's engine levers.' - HG Winters, 1939.

Project Soli Radar Gesture Chip Now FCC Approved
'He waved his hand and the circuit switched abruptly.' - Philip K. Dick, 1955.

Implosion Fabrication Shrinks 3D Objects To Nanoscale
'Carter had watched miniaturization a hundred times...' - Isaac Asimov, 1965.

ODYSSEUS Solar-Powered Stratospheric Plane Flies Forever
'The planes flew continuously, twenty-four hours a day...' - EB White, 1950.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

'Metallic Wood' Strong Like Titanium, Floats In Water
'A metal... light as cork and stronger than steel...'

Seabreacher, H.G. Winter's 1939 Torpoon
'Ken lay full-length in the padded body compartment, his feet resting on the controlling bars of the directional planes, hands on the torpoon's engine levers.'

Abundant Robotics Autonomous Apple Harvester Robot
'... little machines, that went from plant to plant... cutting off the ripe fruit.'

Charging An Electric Car In 2019 (Video), 1912 (Photo) And 1894 (Fiction)
'Recharge the batteries... in almost every town and village...'

Japan Uses Explosives On Asteroid
'...a tiny, rocket-powered projectile, drove towards the mysterious bulk. It hit, exploding into a cloud of incandescent vapour.'

Get Your Speeder Flying Motorcycle From Jetpack Aviation
'The flycycles were miracles of compact design.'

FLIR Black Hornet 3 Palm-sized Drone
These drones can provide situational awareness beyond visual line-of-sight capability.

Dockworkers Protest Driverless Trucks
'It resembled conventional human-operated transportation vehicles, but with one exception -- there was no driver's cabin.'

Flying Car Concept By Kash Sirinanda
'Each one consists of a hub with many tiny spokes... On the end is a squat foot, rubber tread on the bottom...'

Unfurl The Future! Huawei Mate X versus Galaxy Fold
'A paper thin polycarbon screen unfurled silently from the top of the unit and immediately grew rigid.'

Amazon Echo And Google Home Should Have Morality Software
'The Dwoskin Morality Rating-Computer could 'spot the slightest tendency to deviation' from the social norm...'

China Building Robot Wives
'Want a life-companion, a pleasant one?'

China Social Credit System Like State-Run Whuffie
'At least there was no mandatory Whuffie check on the monorail platform...'

Project Soli Radar Gesture Chip Now FCC Approved
'He waved his hand and the circuit switched abruptly.'

Stan, Robot Valet, Will Drag Your Car Away
'He activated the grapple tracks. '

Jibo Home Robot Says Goodbye, Is Killswitched
'It resembles an oyster....'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.